yuv4mpeg: support writing to stdout instead of file.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@34861 b3059339-0415-0410-9bf9-f77b7e298cf2
Allow using -vo yuv4mpeg for files with resolution changes.
Not all programs can read such files.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@34862 b3059339-0415-0410-9bf9-f77b7e298cf2
vo_yuv4mpeg: flush userspace FILE buffers after each frame.
Potentially reduces delay when piping to stdout/fifo.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@34879 b3059339-0415-0410-9bf9-f77b7e298cf2
Author: reimar